DE2364145A1 - Verfahren zur herstellung von zellulosexanthat - Google Patents
Verfahren zur herstellung von zellulosexanthatInfo
- Publication number
- DE2364145A1 DE2364145A1 DE2364145A DE2364145A DE2364145A1 DE 2364145 A1 DE2364145 A1 DE 2364145A1 DE 2364145 A DE2364145 A DE 2364145A DE 2364145 A DE2364145 A DE 2364145A DE 2364145 A1 DE2364145 A1 DE 2364145A1
- Authority
- DE
- Germany
- Prior art keywords
- cellulose
- carbon disulfide
- carbonyl sulfide
- xanthate
- baratte
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 23
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 claims description 152
- 229920002678 cellulose Polymers 0.000 claims description 101
- 239000001913 cellulose Substances 0.000 claims description 101
- JJWKPURADFRFRB-UHFFFAOYSA-N carbonyl sulfide Chemical compound O=C=S JJWKPURADFRFRB-UHFFFAOYSA-N 0.000 claims description 84
- 238000006243 chemical reaction Methods 0.000 claims description 31
- 239000003513 alkali Substances 0.000 claims description 25
- 239000000203 mixture Substances 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- QGJOPFRUJISHPQ-NJFSPNSNSA-N carbon disulfide-14c Chemical compound S=[14C]=S QGJOPFRUJISHPQ-NJFSPNSNSA-N 0.000 claims description 2
- YQCIWBXEVYWRCW-UHFFFAOYSA-N methane;sulfane Chemical compound C.S YQCIWBXEVYWRCW-UHFFFAOYSA-N 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 description 41
- 239000012991 xanthate Substances 0.000 description 41
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 36
- 229920000297 Rayon Polymers 0.000 description 22
- 239000000243 solution Substances 0.000 description 21
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 13
- 229910052717 sulfur Inorganic materials 0.000 description 13
- 239000011593 sulfur Substances 0.000 description 13
- 235000011121 sodium hydroxide Nutrition 0.000 description 12
- 230000035484 reaction time Effects 0.000 description 11
- 230000032683 aging Effects 0.000 description 7
- 239000000047 product Substances 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000005755 formation reaction Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 229920000875 Dissolving pulp Polymers 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- DXHPZXWIPWDXHJ-UHFFFAOYSA-N carbon monosulfide Chemical compound [S+]#[C-] DXHPZXWIPWDXHJ-UHFFFAOYSA-N 0.000 description 1
- 125000005587 carbonate group Chemical group 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 235000015243 ice cream Nutrition 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- 235000013580 sausages Nutrition 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B9/00—Cellulose xanthate; Viscose
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00318065A US3835113A (en) | 1972-12-26 | 1972-12-26 | Preparation of viscose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2364145A1 true DE2364145A1 (de) | 1974-07-11 |
Family
ID=23236478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2364145A Pending DE2364145A1 (de) | 1972-12-26 | 1973-12-21 | Verfahren zur herstellung von zellulosexanthat |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3835113A (en:Method) |
| BE (1) | BE808994A (en:Method) |
| CA (1) | CA969542A (en:Method) |
| DE (1) | DE2364145A1 (en:Method) |
| FR (1) | FR2213290A1 (en:Method) |
| GB (1) | GB1419290A (en:Method) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1121810B (it) * | 1979-06-15 | 1986-04-23 | Snia Viscosa | Procedimento migliorate per la preparazione di viscosa e procedimento di filatura della viscosa cosi'ottenuta |
| MX9304245A (es) * | 1993-07-14 | 1995-01-31 | Celanese Mexicana Sa | Proceso continuo mejorado para la manufactura de envolturas tubulares paraalimentos. |
| US6120861A (en) * | 1995-12-06 | 2000-09-19 | Teepak Investments Inc. | Stretched tubular film for holding foodstuff |
| US5952064A (en) * | 1995-12-06 | 1999-09-14 | Teepak Investments, Inc. | Stretched tubular film for holding foodstuff |
| US5773035A (en) * | 1996-07-01 | 1998-06-30 | Alfacel S.A. | Tubular cellulosic casing die |
| US5865312A (en) * | 1996-07-17 | 1999-02-02 | Alfacel S.A | Packaging of shirred food casing |
| US5741529A (en) | 1996-07-31 | 1998-04-21 | Alfacel S.A. | Adjustable reaction tubs for cellulose |
| US5783131A (en) * | 1996-08-27 | 1998-07-21 | Alfacel S.A. | Method to slowly regenerate cellulosic sausage casing |
| US5782683A (en) * | 1996-08-27 | 1998-07-21 | Alfacel S.A. | Cold temperature shirring |
| US5897432A (en) | 1996-10-15 | 1999-04-27 | Alfacel S.A. | Shirred food casing end system |
| US5795523A (en) * | 1996-10-30 | 1998-08-18 | Alfacel S.A. | Method for treatment of CS2 and H2 S emissions during viscose regeneration |
| US5736087A (en) * | 1996-10-30 | 1998-04-07 | Alfacel S.A. | Method for finishing of sausage casings |
| US5807595A (en) * | 1996-10-31 | 1998-09-15 | Devro-Teepak, Inc. | Sausage product and method for making |
| US5989605A (en) | 1996-10-31 | 1999-11-23 | Teepak Investments, Inc. | Sausage product and method for making |
| US5776398A (en) * | 1997-01-15 | 1998-07-07 | Alfacel S.A. | Method of regenerating sausage casing |
| US5914141A (en) * | 1997-03-11 | 1999-06-22 | Alfacel S.A. | Easy peeling wiener casings via use of enzymes |
| EP0962147A1 (en) * | 1998-06-05 | 1999-12-08 | Alfacel S.A. | Method for treatment of CS2 and H2S emissions during viscose regeneration |
| FI20236374A1 (en) | 2023-12-14 | 2025-06-15 | Teknologian Tutkimuskeskus Vtt Oy | Moulding of regenerated cellulose films into shaped structures |
-
1972
- 1972-12-26 US US00318065A patent/US3835113A/en not_active Expired - Lifetime
-
1973
- 1973-12-20 CA CA188,631A patent/CA969542A/en not_active Expired
- 1973-12-20 FR FR7345775A patent/FR2213290A1/fr not_active Withdrawn
- 1973-12-21 BE BE139180A patent/BE808994A/xx unknown
- 1973-12-21 DE DE2364145A patent/DE2364145A1/de active Pending
- 1973-12-27 GB GB5975773A patent/GB1419290A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE808994A (fr) | 1974-04-16 |
| US3835113A (en) | 1974-09-10 |
| GB1419290A (en) | 1975-12-31 |
| CA969542A (en) | 1975-06-17 |
| FR2213290A1 (en:Method) | 1974-08-02 |
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